Acl: An ACL injury or tear is

An ACL injury or tear is a condition caused by damage to the anterior cruciate ligament in the knee during sports or vehicular accidents and causes pain, swelling and instability. The anterior cruciate ligament, or ACL , is a part of the knee that is prone to injury. Learn about the causes and symptoms of an ACL injury here, as well as about the treatment options and ... Learn about the ACL , one of the four main ligaments of the knee, and its function, structure, and clinical significance. Find out how ACL injuries occur, how they are diagnosed, and how they are treated with surgery or rehabilitation. The anterior cruciate ligament ( ACL ) is one of the key ligaments that help stabilize the knee joint. The ACL connects the thighbone (femur) to the shinbone (tibia). It's most commonly torn during sports that involve sudden stops and changes in direction — such as basketball, soccer, tennis and volleyball.